#1D375C#1D375C

#1D375C is a dark, moderate blue. Relative luminance 0.038; OKLCH L 33.6% C 0.073 H 257.4°. Best body text is #FFFFFF at 11.98:1 contrast (WCAG AA passes).

Color values

HEX	#1D375C
RGB	rgb(29, 55, 92)
HSL	hsl(215, 52%, 24%)
HSV	hsv(215, 68%, 36%)
CMYK	cmyk(68.5%, 40.2%, 0%, 63.9%)
CIE-LAB	lab(22.88, 3.43, -25.11)
CIE-LCH	lch(22.88, 25.34, 277.79°)
OKLab	oklab(33.61% -0.0159 -0.0713)
OKLCH	oklch(33.61% 0.073 257.4)
XYZ	xyz(3.8040, 3.7659, 10.6496)
Luminance	0.0377 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D375C #5C421D

analogous

#1D565C #1D375C #221D5C

triadic

#1D375C #5C1D37 #375C1D

tetradic

#1D375C #5C1D56 #5C421D #1D5C22

square

#1D375C #5C1D56 #5C421D #1D5C22

split-complementary

#1D375C #5C221D #565C1D

monochromatic

#070E17 #0E1B2D #1D375C #2C538B #3A6FB9

Accessibility & contrast

On white

11.98

#1D375C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#1D375C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D375C

11.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D375C	#FFFFFF	#000000	##FFFFFF
##1D375C	1.00	11.98	1.75	11.98
#FFFFFF	11.98	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	11.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#273A5E

Deuteranopia (green-blind)

#1E345B

Tritanopia (blue-blind)

#003F45

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #1d375c;
/* rgb */ color: rgb(29, 55, 92);
/* oklch */ color: oklch(33.6% 0.073 257.4);

Tailwind

colors: {
  custom: {
    50: '#606d8a',
    500: '#1d375c',
    950: '#000000',
  },
}

SCSS

$custom: #1d375c;
$custom-light: #606d8a;
$custom-dark: #000000;

JSON

{
  "hex": "#1d375c",
  "rgb": {
    "r": 29,
    "g": 55,
    "b": 92
  },
  "hsl": {
    "h": 215.238,
    "s": 52.066,
    "l": 23.725
  },
  "oklch": {
    "l": 0.33605,
    "c": 0.07307,
    "h": 257.4
  },
  "luminance": 0.03766
}

Semantic roles & 50–950 ramp

primary

#1D375C

secondary

#917144

accent

#A04CDC

background

#F5F6F8

surface

#EAEBF0

border

#C6C6CB

text

#05070C

muted

#797A7D

Preview Lab

Preview with #1D375C

Body copy rendered with the generated semantic roles for this colour.

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